Home / 13,118.58-18,100.53-7,453.44

Finding the Fourth Proportional to 13,118.58, 18,100.53 and 7,453.44

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Solution

The fourth proportional to 13,118.58, 18,100.53 and 7,453.44 is: 10,283.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.58 : 18,100.53 = 7,453.44 : x
  2. Step 2: Convert to fraction form
    13,118.58/18,100.53 = 7,453.44/x
  3. Step 3: Cross multiply
    13,118.58x = 18,100.53 × 7,453.44
  4. Step 4: Simplify right side
    13,118.58x = 134,911,214.32
  5. Step 5: Solve for x
    x = 134,911,214.32/13,118.58
  6. Step 6: Final answer
    x = 10,283.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.